, E. H. (2014). The Effect of Humic Acid and Silicic Acid on P Adsorption by Amorphous Minerals. [Yogyakarta] : Elsevier.
استشهاد بنمط شيكاغو, Eko Hanudin. The Effect of Humic Acid and Silicic Acid On P Adsorption By Amorphous Minerals. [Yogyakarta] : Elsevier, 2014.
MLA استشهاد, Eko Hanudin. The Effect of Humic Acid and Silicic Acid On P Adsorption By Amorphous Minerals. [Yogyakarta] : Elsevier, 2014.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.